Improvement in pipe-couplings



vand useful Improvement in Pipe-Couplings;

- `quiredto run steam-pipe for heating purposes UNITED 4Sra'rns' PATENTOFFICE.

' SHERMAX R. VARNER, OF NEW' HAVEN, COXNCTICUT.

iMPaovEMENT IN PIPE-COUPLINGS.

Specification forming part of Letters APat-ent X0. 8,929, dated March10, 1863.

To all whoml it may concern.- .l The ilanges of lthe two ringsAA, whenjoined, VBe iis-known that I, SHERMAN R. IYARNER, ',form a wedgeshapedband around the rings. of the city and countyof New Haren, and State ofConnecticut, have invented a new each a groove on their inside tocorrespond and Ihereby declare thefollowing'to be a full, i asbefore-described, by the' union of the two clear, and exact descriptionof the same, refanges ay a. After the two rings have'been erence beinghad to the accompanying draw" placed together to unite the ends of twoings, making a part of this specitication, in I pipes, as before-descrihechl place the clamps which- 4 5 E E over thewedged-shaped,bandfand force Figure v1 isan end view. Fig. 2 `is a sideI them down ontothe band. This forces the two View, a portion brokenlaway toillustrate my rings A A tight and firmly together or ontoimprovement. Figisa longitudinal central the 'packing c. I usually makeVthe rings of section. E soft metal, as brass, and the 'clamps of ironSame letters and characters refer to like i or hard metal,`and Ifind'thatyin forcing one parts. upon the other the iron andL l-rass`unite suj My invention is particularly designedto j ciently torequire noother fastening; but to couple tinl or similar metal pipes,for the purprovide .against objections to this method I poseotconducting steam for heating purposes, f make the outer surface ot' theclamp a little but is equally applicable for couplingr other inclined,(sce Fig. 3,) or ot'. less'diameter at kiudsofpipe,andforotherpurposes.The usual one edgethan the other. I the'n force over` method of couplingsuch pipes is to braze or fthe clamps-a ring, F, the inside ot' whichcon' solder the pipe to a flange, and bolt two of the ,j responds withthe inclination of the clamps. anges together in similar manner tocast-iron This forces the clamps onto the i-ange, and pipes, butin manypositions where it is rejholds them there until the ring is removed.

it is very difficult, and sometimes impossible, two clamps,but do notconfine myself to that to turn the bolts to hold the iianges. It is thisj number, asone may be constructed to obtain and other objections thathave sugested this @thesame result, orgmoremay be 'used if,reimprovement, and its-.object is 'to overcome i quired. `l y them. l-Havingthus fully described my invention,

To enable others skilled to make and use what I claim thereinas new anduseful, and

my invention, lI will proceed to describe its @desire t-o secure byLetters Patent, isl construction and operation. l- The combination andarrangement'descrlbed AVA are two rings, to each of. which is sol of the`rings A A, clamps E, and forcing-ring dered or fixed the tin or otherpipes which it i F, inthe manner and for the purpose substan is desiredto couple. This may be done .by i tially as herein specifiedp pinserting the ring within the pipe, as C, Fig. i' S. R. WARNER. 3, or byinserting the pipe within the ring, as Witnesses: 4 i q D, Fig. 3. .Ouone edge of each ring I form a A. R. TREADWAY, flange-,11, so as toleave a space, c, for packing.- JOHN'E.' EARLS.

E E are two semieircular clamps, and havewith the wedge shapeof the bandformed, f

I' have" described-my inventio.- as having'

